Abstract
It is shown that nonlinear interaction of bulk acoustic phonons with fluctuation resonant vibrations of a two-dimensional transition layer at clean interface between two media (a rigid and a soft crystal) with very different elastic properties leads to the subharmonic transmission across the interface of acoustic phonons incident from a rigid crystal with frequencies above the highest frequency in a soft crystal, and to the second- (and multi) harmonic transmission of acoustic phonons incident from a soft crystal. These inelastic interface dynamical phenomena can substantially contribute to the Kapitza thermal boundary conductance between solids with very different vibrational spectra (such as diamond and soft crystal asPb orAu) and to the thermal conductance across a helium-solid interface also.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
